Swab plunger



INVENTOR B ATTORNEY April 25, 1933. N. H. RICKER SWAB PLUNGER Filed Feb. 1, 1932 3 4 Z 1 7 95 H Wm m D W w mwmw NORMAN H. RICKER Patented Apr. 25, 1933 r a NORMAN n. nroxnaor nous'ron, 'rnxasgassrerioa iron ennsmoor. HoUs'roN, TEXAS,'A oonrona'rroniorfirnxhs SWAB rnnifenit Application filed February '1 My invention relatesto plungers to be employed in plunger lift devices in lifting liquid from deep wells and in whichthe plungor is moved from the lower end to the upper 5 end thereof by fluid pressure.

This invention is an improvement uponthe 1 2 device disclosed in my prior patent-takenf jointly with Harold W. Fletcher No.

1,769,637, issued July 1, 1930.

5 closed position by fluid pressure.

It is also an object to provide a valve seat movable and replaceable.

It is an object of my invention to provide a plunger in which the valve opens downwardly therein and is held resiliently from its seat, and in which the valve may be forced againstthe action of the spring to its nasal: construction in which the seat is readily Ie- H In the usual plunger lift apparatus the plunger is movable from a seat at thelower end of the eduction tube to the upper end by Q pneumatic pressure, either through, the

pressure of gas or air delivered to the well under pressure from the surface. When the plunger has been raised in the eduction tube to the upper end thereof, it is sometimesdif- 1, f ficult to properly open the valve and retain Pf' Q will, I YQ i th t the-10W it in opened position while dropping again to its seat at the lower end of the tube. The

force of the rising current of air or gas below 2,

the plunger will sometimesact upon the plunger at the upper end of the tube to properly open the same.

upon the valve with a predetermined pressure suflicient to normally open the same and retain it in opened position, but which is of insuflicient strength to pull the valve open against the lifting action of the pressure In the drawing herewith the construction loosely. within the eduction tube not shown. The interior wall 2 of the body is reduced 'i' Q rals valve to close it, and in other cases there is not sufiicient compression of fluid above the. p

p axial passage 15 therethrough t It is therefore an object of my invention I to provide a spring which is adapted to act 4 i against a shoulder 20 in the passag position with a moderate force,

llowed to. drop. into 1 l p sin ins lp ,6 1 .6 v lve, the valve ,mmbemr ,iute f "li ithatlliflew afgliq. 2 b? l P S llfii j file-1111.36

hpf

1,1 3.; vhi hk eare at; its use nd,

The sprain 'gis gnnder tension to a 1 limite(i l m t, ds h oldth'evalve in opened When the plunger in operation reaches the lower end of its stroke,-the valve will be forced to its seat by contact of'the lower endfiir "n anathem the actimijof the spring; @Whnthe plunger 5 15 cfailure pftheva1ve't0- bpendue to the: force plungehlqltiwill .thusIbepdssimeto peme v f fd'engand remain in o ened' osition of the valve stex'nQwith the usua1fstop jmem-' I ber, not shown. The force of the pressure Qfluid below the valve will therfbe exerted I against the'lowerside f-the alve head '11, 41ml will retain it, in Closed 'pos i tionjagai nst theplunger inifpifmly'iwithputginterruptieh 1 ue tothe faihirebfthe:yalve to -p opefly -;SP n 4-S PP emen S e-a e -d reed? A 5 '1 w il l a'ssu i*e the proper'action qfz the valve in 5;

the upward stream of fluid. e f E t x said seatmnd means efiithinfsaid supportndb iIt)(zdy n1ember, a ,valve seat'at the lowegjehd I. itherebi a valve ada'ptedtq close upwardly V intd "sai d seat, a. support fer said valye'belowjv afl i e v 'efinesmainggatoay 5 1151 *drieal ofi its euter'?=s1 1'rfape but with'jitsj ili1- ne r. wall; eopverging downwardly;- a, i s'eit at f 1 3 fwhe'1 w id sa -body, v lv ib low s id -1 I V f'seat arid}; springv-ndrinallyhresistihg fihebloe ff f-fs'aidgvalvel pwardly'iyitQ'itslseat; ,Alsw bp iing r c u nga ywlhi id e 1gen itsbuter}surface'butjwith' its inner I l (wall-conyerging;d0wnwaidly, a'eat secured. f

renio ably. eat th lowe d' fj idfbddyy 1i in'g pf said valve lip wardlyinto its se t.

mafia-time seatthereon; ajyalve below selid f ii a ve helowr a da e t, ppo t f r sai 1 ;sea,t, ad nda spring fior'mallyresisting the 9103- 

